PONTIFICIAE ACADEMIAE SCIENTIARVM SCRIPTA VARIA - 28

CONTENTS

FOREWORD.

MODELLING ECONOMIC SYSTEMS. 1. The background. - 2. Models and
their environment.

MODELS, POLICIES AND PLANS. I. Models: a) Variables, b) Relationships.
c) Estimation, d) Computability. - 2. Policies. - 3. Plans.
II. A DUAL MODEL OF ECONOMIC GROWTH. I. A new development. - 2. Steady
states and transient states. - 3. Why a dual model?

THE STEADY-STATE MODEL, 1. Introduction. - 2. The variables. - 3. The
relationships: a) The circuit of real flows, b) The price circuit, ¢) The
foreign trade circuit, d) The circuit od education and training, e) The
financial circuit, f) The circuit of research and development. - 4. The
methods of estimation: a) Exogenous final demand, b) Endogenous
final demand, ¢) Intermediate demand, d) Output levels, e) The industrial
 distribution of labour, f) Changes in the spectrum of skills. -
5. The computing sequence.
«THE TRANSIENT MODEL. 1. Introduction. - 2. The relationships.
VI. CONCLUSIONS.
À LIST OF WORKS CITED.

DIAGRAMS

1, À model in its environment. - 2. A corrective device for economic
models. - 3. A dual model of economic growth. - 4. The steady-state model

TABLES

1. A provisional social accounting matrix for Britain, 1962. - 2. The
computing sequence.

Stone - pag. 86